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Rising temperatures turning green sea turtles female
#1
https://www.theguardian.com/environment/...les-female

Sea turtles are amongst the many species that have temperature-dependent sex-determination. So far I understand it, the warmer the water gets, the more females we get.They investigated populations of hundreds of thousands, and found that in the southern Australia group, 65%-69% specimen were female, whereas «females in the northern group accounted for 99.1% of juveniles, 99.8% of subadults and 86.8% of adults.»

Mere degrees—single digit—variation, would mean 100% fe/males.

I don't know a lot about this, but I know that several reptiles and
amphibians reproduce with this caveat—something most people haven't
considered about climate change, I'm sure.
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